Go to abs.xyz.

Click “Login” (or “Go to app”) and choose a sign-in method:

Once logged in, open your Wallet page → click Fund → pick what works best:

Navigate to the Trade section on abs.xyz and select $PlanB.

If needed, copy/paste the contract address to confirm you’ve selected the right asset:

Enter your amount, review the details, then confirm the purchase of $PlanB.